Means for delivering air-pump and blower exhaust to locomotive-smoke-stacks



A. N. LUCAS. MEANS FOR DELIVERING AIR PUMP AND BLOWER EXHAUST TO LOCOMOTIVE SMO KESTACKS.

APPLICATION FILED APR-15, I915- Patented Feb. 3,1920.

2 SHEETSSHEET I.

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A. N. LUCAS.

MEANS FOR DELIVERING AIR PUMP AND BLOWER EXHAUST TO LOCOMOTIVE SMOKESTACKS. APPLICATION FILED APR. I5, I915.

1,329, 6 1 8, Patented Feb. 3, 1920.

' 2 SHEETS-SHEET 2. W 35 [WI/6722b? wk flmm JV Lucas 9% @QMXQ 1 7m UNITED STATES PATENT OFFICE.

ABBAM N. LUCAS, OF MILWAUKEE, WISCONSIN.

MEANS FOR DELIVERING AIR-PUMP AND BLOl/VER EXHAUST TO LOCOMOTIVE-SMOKE- STAGE $3.

Specification of Letters Patent.

Patented Feb. 3, 1920.

Application filed April 15. 1915. Serial No. 21.581.

To all whom. it may concern:

Be it known that I, Annaii N. Lucas, a citizen of the United States, and a resident of Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented certain new and useful Improvements in. Means for Delivering AinPump and Blower Exhaust to Locomotive-Sinokestacks; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being bad to the accompanying drawings, and to the characters of reference marked thereon, which form a part of this specification.

This invention relates to a novel arrangement for connecting the exhaust side of an air pump engine and a distributor to the smoke stack of a locomotive engine to conduct and discharge the exhaust material into and through the smoke stack.

.riinong the objects of the invention is to provide an exhaust for this purpose, so arranged as to deliver the exhaust material into the base of the smoke stack without interfering with the main exhaust from the engine cylinders.

Another object of the invention is to provide an arrangement whereby the exhaust material will be delivered to the smoke stack at a reduced pressure, as compared to prior practice, and distributed throughout the base of the stack in a manner to mul'ile the exhaust of the air pump engine and the noise of the distributer and to thereby substantially reduce the noise of the exhaust and also to reduce the blowing ei'iect oit'the air pump exhaust on the fire in the fire box, and thereby facilitate the steaming of the boiler.

A further object of the invention is to provide an arrangement of this character wherein the exhaust material is delivered to the base of the smoke stack and is commingled with the smoke therein in a manner to appreciably quench the sparks and thereby lessen the emission of sparks from the smoke stack, and to also appreciably clear up the black smoke.

A. :l'urther object of the invention is to provide a device for effecting the improvements hereinabove set forth, the principal portion of which consists of a very simple, readily constructed and easily applied a tachment, and to provide means whereby the connection of the pump exhaust and distributor pipe thereto are all outside connections and, therefore, readily accessible.

The invention has for turtherobjects to otherwise improve and simplify the connection of exhaust devices to the smoke stack, and the invention consists in the details and arrangements of the parts hereinafter described and more fully set forthin the appended claims.

In the drawings Figure l is a partial side elevation of a locomotive boiler showing my invention ap plied thereto.

Fig. 2 is an enlarged axial section of the base of the smoke stack, the smoke arch saddle and my improved distributing and muffling ring therebetween.

Fig. 3 is a sectional detail of an automatic drain valve which is incorporated in the pump exhaust and distributer pipes.

Fig. 4 is a view similarto Fig. 2, showing a modification.

Fig. 5 is a horizontal section of a segment of the muiliinq' and distributing ring, showing the exhaust and distributer pipe connections thereto.

As shown in the drawings, designates a locomotive boiler, 11 an air pump thereon which is connected to the air brake system in any suitable manner, 12 the usual smoke stack and 18 a distributor arranged at the rear end of the boiler at the engineers cab, not shown. The distributor is connected by a pipe 14 with the smoke stack 12 to deliver steam thereto to increase the draft on the fire in the fire box. The engine of the air pump 11 is connected by a pipe 11 with the smoke stack to discharge its exhaust thereinto.

Referring now to the features of my in vention which relate to the means for discharging the exhaust material into the smoke stack. and calling attention first to the. form of device shown in Fig. 2, 15 desig- A nates. what may be termed, a distributing and n'miiiing ring which is formed with an annular chamber 16. Said ring, as shown in Fi 2, has the form of a separate casting that adapted to be interposed between the arch saddle 17 and the lower end or base of the smoke stack 12. In the form of construction shown in Fig. 2 the base of the smoke stack is provided with an annular depending flange 18 which is adapted to. fit into an annular rabbeted portion 19 of the ertent advantage e the main :on gh the thus material. to the Y increasing; the

Said a1- ous in t lat is discharged into itively noiselessly, the d .l e may he antiii ise ordinances uyt-he tore, the arhele exhau t material is iolze in the s tit,

g ring proton with l the J i we bundle open ring 21110: cencenti'ie tn the the areas I 7 that 01 the distributi'edueet 11y be termed in IT-L113 ;ure, lg may be provided nnni-gled with we the pipe ot and to exercise G et located in a roundie a leceniotive may initial draft to start before the boiler is he to produce a fire in the fire box rteainecl.

As further inimovenient the pipes 14land 11 which extend directly from the 11111??- iler and disti'ibutingiing to the air pump ielofv id OlP Jb sehavge into the and disti'ihutei' are arranged in such inan- 16 of the distributing 215i" that the lowest parts of said pipes a e .ecated clos 1y acgacen to their connecone with said devices. Contained within aid pipes and located closely Ldjacent to distribute? and air pump, respectively, drain valves 33 which are arranged to utoinatically main water of condensation the jet 15 dischargul zznnnlzn Biotin-e tronsaid pipes said drain valves lin ng that surrounds the smoke coluini and wlncn disposed at the lowest parts of the pipes.

is disposed concentrically to the axis of the A convenient form of automatie drain n U i) valve is shown in Fig. As therein shown, it consists of a body having the form of a coupling to connect adjacent sections of the pipe in which it is incorporated. The said body 35 is provided with a hollow depending, internally screw-threaded neck 36. 37 designates a plug which is exteriorly screw-threaded to engage the interior screw threads of the neck 36 and depends from said neck. Said plug is provided with one or more drain openings 38 through which water is drained from the valve. Said openings 38 are adapted to be closed by a valve piece 39 which has the form of a disk, as herein shown, and is adapted, when closed, to rest upon the upper end of the plug 37 and to close the drain openings 38. Said valve piece is provided with a depending stem a0 which extends downwardly through a central guide opening al of the plug. The lower end A2 of the stem is reduced to provide a downwardly facing shoulder 43 and. the lower end of the central opening ll or the plug is likewise reduced to constitute an upwardly facing shoulder 44:. A coinpres sion spring 45 surrounds the reduced end of the stem and is interposed between said shoulders 43, A l and acts to normally hold the valve piece in its open position; the opening movement of the valve being lim ited by a nut $6, or other shoulder, on the lower end of the stem and bearing against the lower face of the plug 37. When the pressure in the pipe 1% is equalized with the atmospheric pressure, the spring 4-5 holds the valve piece 39 in its open position, as indicated in Fig. 3. Pressure within the pipe 14-, such as occurs upon the passing of exhaust material therethrough, serves to close the valve and prevent leakage of exhaust material therefrom. The area ofthe valve piece is such, with respect to the strength of the spring 45 that a very slight rise of pressure in the pipe serves to promptly close the valve against the passage of exhaust material.

It will be understood that the invention is not limited to the structural details herein shown, but that it is my intention to claim all that is inherently novel in the disclosure herein.

I claimas my invention 1. The combination with the smoke stack of a locomotive boiler and smoke arch saddle thereof, of a separately formed, removably attached fitting between the stack and arch saddle and above the boiler and formed to interfit with standard saddles and smoke stacks of a locomotive, and provided with an annular chamber which surrounds the stack smoke conduit, said fitting being provided with a connection external to the boiler for exhaust and distributor pipes and being provided with an internal annular nozzle to direct exhaust material into the smoke stack.

2. The combination with the smoke arch of a locomotive boiler, the smoke arch saddle thereabove and the smoke stack, of aseparately formed litting between the stack and the saddle formed with an annular chamber and provided with an exhaust receiving opening and with an internal annular nozzle exteriorto said fitting to direct exhaust material into the stack, and fastening bolts to fasten the stack to the saddle and to clamp the fitting between the stack and saddle.

3. The combination with the smoke stack and the smoke stack arch saddle of a locomotive boiler of a nozzle fitting interposed between the base of said stack and said smoke arch saddle, provided on its upper and lower sides with annular flanges or shoulders to interiit with annular shoulders on said stack and saddle respectively, and provided with an annular nozzle and with an external exhaust receiving opening.

In testimony, that I claim the foregoing as my invention I aflix my signature in the presence of two witnesses, this 7th day of April, A. D. 1915.

ABRAM N. LUCAS.

Witnesses:

W. L. HALL, G. E. DOWLE. 

